Align object to vector using Dgame framework

[via Digitalmars-d-learn]

On Tuesday, 14 July 2015 at 00:31:56 UTC, codenstuff wrote:
> On Monday, 13 July 2015 at 19:07:55 UTC, Márcio Martins wrote:
>> On Monday, 13 July 2015 at 16:11:03 UTC, codenstuff wrote:
>>> [...]
>>
>> This is not really a game development forum but here you go:
>> auto rads = atan2(object.velocity.y, object.velocity.x); // 
>> returns radians
>> auto degs = angle * (180.0f / PI); // convert to degrees
>> shape.rotate(degs);
>>
>> I suggest you store velocity as a Vector2f to avoid later 
>> confusion.
>>
>> It is really useful to learn basic linear algebra, and 
>> trigonometry as a game developer - you will be needing these 
>> tools on a daily basis.
>
> This does not work as expected. It keeps rotating object as 
> long as vector is at angle. Any idea how to improve on this?

I'm sorry. You should use setRotation() instead, rotate() just 
adds to the rotation.